It's definitely been out a while - I missed it the first time but have had it on DVD for a few months now. It is properly good - I'm amazed the BBC signed off on it - "let's make a sitcom based around an IED team in Helmand...." They obviously spent a long time with actual forces types, rather than it all being central casting civvies' idea of what the forces is like. But a lot of it is *very* near the knuckle - very much the British MASH I think (MASH film rather than TV series). Obviously there are bits that don't quite work, but it's an easy 5/5.